I would've never seen this coming—Armisen, a pretty major actor in his own right, taking on a steady day job like this. But let's not forget: The Roots as a house band was once unthinkable too. And Armisen tagging color commentary onto Meyers' jokes feels like a perfect balance. They're the cutest, wittiest guys at two totally different parties.

What I'm most excited about, though, is the sketch potential Armisen's addition indicates. We don't know too much about the format of Meyers' show yet; the role zany, scripted bits will play remains to be seen. It would almost be wasteful to have Armisen around and not use his flair for characters—so I'm taking this as a sign there's more Late Night viral fun on the way.

Also, the band's drummer is a girl who's played with Beyonce, so clearly this is a real cool-kid's crowd. Looks like Seth's party and Fred's party are finally merging. Hooray!